Shavua Tov and Purim Sameach. For those celebrating tonight outside of Jerusalem, the following applies now on the 14th of Adar and for Jerusalemites, this applies tomorrow evening.
We add על הניסים in Shmone Esrei and Birkat Hamazon. If one forgot to say it, he does not repeat the Benching or Davening.
The four Mitzvot of the day are to be observed by both men and women.
Megillah needs to be heard twice. It can be heard any time at night and all day during the day.
Matanot L'evyonim- Two different poor people should receive a cash gift to be received during Purim day. Local Shules usually take care of this.
Mishloach Manot-Two different foods to at least one person who can be related. A messenger should deliver it.
Seudat Purim-Should contain meat and wine and should begin before sunset on Purim day. The Rabbis say that there's no joy without wine and meat. Purim Sameach and wine is meant to be the primary alcoholic beverage.